How to Use Bore Sighting to Sight-In Your Rifle Scope
If you want to shoot long range with increased accuracy, a scope is essential. Whether it’s Vortex or Nikon scopes,
each time you change the scope on your rifle, you will need to sight-in
or “zero” your scope. Bore sighting is one easy way to accomplish this.
Install the Scope
First, ensure the scope is installed correctly. Most modern rifles already have a mounting system, such as a Picatinny rail, or pre-drilled and tapped holes for scope bases. Make sure the scope rings fit the scope, as certain types of rings only fit specific types of bases. If, for example, you are using a Redfield scope, make sure the rings fit Redfield scopes.
Remove the Rifle’s Bolt
Bore sighting is a relatively straightforward process of first aligning the barrel, or bore, and then the optic, with the target. In order to align the barrel, you first need to remove the bolt or bolt carrier group (BCG)—depending on your make and model—from the rifle.
Stabilize the Rifle
Next, using sandbags or a sight-in vice and a sturdy bench, stabilize the rifle. This is extremely important, as you don’t want it to move around while you are sighting in.
Align the Bore
With the rifle stable, look through the bore and line it up with the target. Make sure the target is at your desired sight distance. Even if you are planning on making the zero distance 200 or 300 yards, it’s a good idea to sight in at 50 or 100 yards first, and then work your way out.
Align the Reticle
Now that the bore is aligned, be extra careful that it doesn’t move, or you’ll have to go back and align it again. Without touching the rifle, look through the scope. You probably won’t be able to get into your normal shooting position, but you should still be able to see through the scope and see where the reticle is pointed. Adjust windage and elevation until the reticle is aligned with the center of the target. This can take a few tries, as it’s very easy to move the rifle accidentally. Realign the bore as needed.
Fire Three-Shot Groups
Despite all this work, the zeroing probably isn’t perfect. Reassemble your rifle and fire a shot downrange. Generally, most modern scopes use Minute of Angle, or MOA, and will allow you to adjust in ¼ MOA increments. This translates to a ¼ inch difference at 100 yards per click, or four clicks for an inch. Shoot three-shot groupings and keep adjusting as necessary until you are satisfied the rifle is sighted in.
Zero the Scope
Once sighted in, you’ll want to make sure the dials are set to zero marks, but with your adjustments. It's best to refer to the scope's user manual, but most scopes have screws that can be loosened or dials that pop up to reset the dial to zero while keeping your adjustments. Once done, your rifle is ready for use.
About Natchez Shooters Supplies
Natchez Shooters Supplies was established in 1979 by two families looking to supply shooters with quality products. A one-stop shop for sportsmen, they pride themselves on hard work, integrity, and exceptional products. Just like their customers, Natchez Shooters Supplies’ team is made up of outdoorsmen, sportsmen, and hunters, and they aim to make the shopping experience personal and tailored to your needs. They offer everything from Nikon scopes, ammunition, and reloading supplies, as well as fishing, hunting, camping, and survival gear. Their team of experts will be happy to talk with you about your sporting needs, and quickly find the right solution.
Get all of your shooting essentials from Natchez Shooters Supplies at Natchezss.com
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Redfield scopes |
First, ensure the scope is installed correctly. Most modern rifles already have a mounting system, such as a Picatinny rail, or pre-drilled and tapped holes for scope bases. Make sure the scope rings fit the scope, as certain types of rings only fit specific types of bases. If, for example, you are using a Redfield scope, make sure the rings fit Redfield scopes.
Remove the Rifle’s Bolt
Bore sighting is a relatively straightforward process of first aligning the barrel, or bore, and then the optic, with the target. In order to align the barrel, you first need to remove the bolt or bolt carrier group (BCG)—depending on your make and model—from the rifle.
Stabilize the Rifle
Next, using sandbags or a sight-in vice and a sturdy bench, stabilize the rifle. This is extremely important, as you don’t want it to move around while you are sighting in.
Align the Bore
With the rifle stable, look through the bore and line it up with the target. Make sure the target is at your desired sight distance. Even if you are planning on making the zero distance 200 or 300 yards, it’s a good idea to sight in at 50 or 100 yards first, and then work your way out.
Align the Reticle
Now that the bore is aligned, be extra careful that it doesn’t move, or you’ll have to go back and align it again. Without touching the rifle, look through the scope. You probably won’t be able to get into your normal shooting position, but you should still be able to see through the scope and see where the reticle is pointed. Adjust windage and elevation until the reticle is aligned with the center of the target. This can take a few tries, as it’s very easy to move the rifle accidentally. Realign the bore as needed.
Fire Three-Shot Groups
Despite all this work, the zeroing probably isn’t perfect. Reassemble your rifle and fire a shot downrange. Generally, most modern scopes use Minute of Angle, or MOA, and will allow you to adjust in ¼ MOA increments. This translates to a ¼ inch difference at 100 yards per click, or four clicks for an inch. Shoot three-shot groupings and keep adjusting as necessary until you are satisfied the rifle is sighted in.
Zero the Scope
Once sighted in, you’ll want to make sure the dials are set to zero marks, but with your adjustments. It's best to refer to the scope's user manual, but most scopes have screws that can be loosened or dials that pop up to reset the dial to zero while keeping your adjustments. Once done, your rifle is ready for use.
About Natchez Shooters Supplies
Natchez Shooters Supplies was established in 1979 by two families looking to supply shooters with quality products. A one-stop shop for sportsmen, they pride themselves on hard work, integrity, and exceptional products. Just like their customers, Natchez Shooters Supplies’ team is made up of outdoorsmen, sportsmen, and hunters, and they aim to make the shopping experience personal and tailored to your needs. They offer everything from Nikon scopes, ammunition, and reloading supplies, as well as fishing, hunting, camping, and survival gear. Their team of experts will be happy to talk with you about your sporting needs, and quickly find the right solution.
Get all of your shooting essentials from Natchez Shooters Supplies at Natchezss.com
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